Digital Mimicry: A Sonically Neutral Comparison Between Guitar Amplifiers and IR-Based Emulation

Presenter Information

Sage RiceFollow

Presenter Type

UNO Undergraduate Student

Major/Field of Study

Music

Other

Music: Music Technology

Advisor Information

(sethshafer@unomaha.edu) Seth Shafer

Location

SPAC105 - U

Presentation Type

Demonstration

Start Date

24-3-2023 1:00 PM

End Date

24-3-2023 2:15 PM

Abstract

In an effort to understand current technology’s ability to emulate guitar amplifiers digitally, I created emulations of several popular amplifiers from their counterparts. I used two different methods to capture emulations of the amplifiers with varying budgets and recorded an identical guitar part through each of the emulations. The first emulation method was the most cost-efficient, by playing a short pulse of white noise through the amplifiers and using a popular low-cost program I was able to gather usable emulations of the amplifiers. The second method involved a combination of software and hardware that was more cost prohibitive, using a proprietary emulation method developed by a private corporation. Additionally, I created emulations of a guitar amplifier’s speaker section to compare both processes without the amplification section’s influence on the final sound. A comparison between the authentic amplifier and the digital emulation reveals where these physical modeling methods do well and where they fall flat. The implications of this study suggest significant cost, weight, space, and energy savings when considering whether to use a guitar amplifier for recording or live performance.

Additional Information (Optional)

Two Electrical Outlets

Table

Scheduling

1-2:15 p.m., 2:30 -3:45 p.m.

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Mar 24th, 1:00 PM Mar 24th, 2:15 PM

Digital Mimicry: A Sonically Neutral Comparison Between Guitar Amplifiers and IR-Based Emulation

SPAC105 - U

In an effort to understand current technology’s ability to emulate guitar amplifiers digitally, I created emulations of several popular amplifiers from their counterparts. I used two different methods to capture emulations of the amplifiers with varying budgets and recorded an identical guitar part through each of the emulations. The first emulation method was the most cost-efficient, by playing a short pulse of white noise through the amplifiers and using a popular low-cost program I was able to gather usable emulations of the amplifiers. The second method involved a combination of software and hardware that was more cost prohibitive, using a proprietary emulation method developed by a private corporation. Additionally, I created emulations of a guitar amplifier’s speaker section to compare both processes without the amplification section’s influence on the final sound. A comparison between the authentic amplifier and the digital emulation reveals where these physical modeling methods do well and where they fall flat. The implications of this study suggest significant cost, weight, space, and energy savings when considering whether to use a guitar amplifier for recording or live performance.